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<td class="pageTitle" nowrap="true">Task: Make Changes</td><td width="100%">
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<td valign="top">This task describes what the main operations to create and modify Work Products are, and how to perform them.</td>
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<td>Disciplines: <a href="./../../rup/disciplines/rup_config_and_change_manage_discipline_CC612E7A.html" guid="_yeA1xNnmEdmO6L4XMImrsA">配置与变更管理</a></td>
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<div class="sectionHeading">Purpose</div>
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<ul>
    <li>
        "Makes Changes" is a generic task to accommodate the team members' need for access to the set of work products to
        be changed (<i>change set</i>) in order to fulfill (<i>through performing various tasks)</i> the requirements of
        their work order.
    </li>
</ul></td>
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</div>
<div class="sectionHeading">Relationships</div>
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<th class="sectionTableHeading" scope="row">Roles</th><td class="sectionTableCell" width="42%"><span class="sectionTableCellHeading">Primary Performer:
								</span>
<ul>
<li>
<a href="./../../rup/roles/rup_any_role_94A712F5.html" guid="{8570B861-6749-421E-A469-38D369342D39}">任何角色</a>
</li>
</ul>
</td><td class="sectionTableCell"><span class="sectionTableCellHeading">Additional Performers:
								</span></td>
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<th class="sectionTableHeading" scope="row">Inputs</th><td class="sectionTableCell" width="42%"><span class="sectionTableCellHeading">Mandatory:
								</span>
<ul>
<li>None</li>
</ul>
</td><td class="sectionTableCell"><span class="sectionTableCellHeading">Optional:
								</span>
<ul>
<li>
<a href="./../../rup/workproducts/rup_work_order_CFBC805B.html" guid="{18DB40A1-6272-467A-AC68-B2C4BE1DCD6C}">工作单</a>
</li>
<li>
<a href="./../../rup/workproducts/rup_workspace_C8AE02BF.html" guid="{227398F1-D995-4527-8C4F-292024EFDD96}">工作空间</a>
</li>
</ul>
<ul></ul>
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<th class="sectionTableHeading" scope="row">Outputs</th><td class="sectionTableCell" colspan="2">
<ul>
<li>
<a href="./../../rup/workproducts/rup_workspace_C8AE02BF.html" guid="{227398F1-D995-4527-8C4F-292024EFDD96}">工作空间</a>
</li>
</ul>
<ul></ul>
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<div class="sectionHeading">Main Description</div>
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    The Work Order from project management is a stimulus to any work being performed on a project. On being given a work
    order, team members will typically plan their work by creating "to do" lists with due dates that meet the "contract"
    outlined in the work order.
</p>
<p>
    The next step is for the responsible role to get or create the necessary work products that need to be worked on or
    added to source control.
</p>
<p>
    Projects usually maintain controlled versions of work products in a central, restricted access, repository. Check-In
    and Check-Out are the operations that enable development staff to obtain a particular version of a work product, make
    changes to it, and re-submit it to become the latest controlled version. The purpose of this step is to ensure that
    developers follow 'check-in and check-out' procedures to make changes to version controlled work products.
</p>
<p>
    The primary CM operations performed by any member of the development staff are:
</p>
<ul>
    <li>
        <a key="配置项（configuration item）" text="检出" name="XE_configuration_item__check-out" id="XE_configuration_item__check-out" class="index"></a><b>Check Out</b> - Grants permission to change an element
    </li>
</ul>
<ul>
    <li>
        <a key="配置项（configuration item）" text="检入" name="XE_configuration_item__check-in" id="XE_configuration_item__check-in" class="index"></a><b>Check In</b> - Stores a new version of the changed
        element and makes changes available for Check-Out by other team members. A recommended policy is that every
        check-in be accompanied by a brief comment describing the change.
    </li>
</ul>
<ul>
    <li>
        <b>Add to Source Control</b> - Places a new file or directory under version control, creating the initial version
    </li>
</ul>
<ul>
    <li>
        <b>Deliver</b> - Submits changes to the integrator.
    </li>
    <li>
        <b>Rebase</b> - Makes changes made by other developers available to your view.
    </li>
</ul>
<p>
    An implementer will typically work in the following manner:
</p>
<ol>
    <li>
        Checks out the files that need to be changed.
    </li>
    <li>
        Makes the changes.
    </li>
    <li>
        Performs unit tests to verify the changes.
    </li>
    <li>
        Gets the changes approved.
    </li>
    <li>
        Checks in the changes.
    </li>
    <li>
        Promote the changes.
    </li>
</ol>
<p>
    <br />
    <b>Different Kinds of Check-Out</b><br />
    <br />
    By default, checking out an element grants the exclusive right to create a new version of it. This is called a
    <i>reserved checkout</i>. Another user who attempts a reserved checkout of that element is prevented from doing so.
</p>
<p>
    In parallel development situations, an <i>unreserved checkout</i> is a mechanism to checkout a file even if someone
    else has already checked it out.<br />
    <br />
    Some organizations routinely use a first-come/first-served style of development, in which multiple users perform an
    unreserved Check Out of the same element. Any one of them can subsequently perform a Check In, to create the next
    version of that file. Each of the others must <i>merge</i> these changes with previously checked in changes before
    creating a subsequent version.
</p><br />
<br /></td>
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<div class="sectionHeading">More Information</div>
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<th class="sectionTableHeading" scope="row">Tool Mentors</th><td class="sectionTableCell">
<ul>
<li>
<a href="./../../rup/guidances/toolmentors/accessing_clearcase_3570C723.html" guid="{B67E317F-3C7C-4377-9F44-E9B38321C3F1}">从 Rational Rose 访问 Rational ClearCase</a>
</li>
<li>
<a href="./../../rup/guidances/toolmentors/using_ucm_change_sets_with_clearcase_46E66835.html" guid="{C7D320FC-FD99-4842-9193-28565FC50FEB}">将 UCM 变更集与 Rational ClearCase 一起使用</a>
</li>
<li>
<a href="./../../rup/guidances/toolmentors/check_out_check_in_203CEEC2.html" guid="{3D4CC908-5E3C-48C5-99F6-D4137834D9A4}">使用 Rational ClearCase 检出和检入配置项</a>
</li>
<li>
<a href="./../../rup/guidances/toolmentors/view_history_of_requirement_5A843E1D.html" guid="{9D4EA8B0-AB27-4B4F-9571-938469E24D7A}">使用 Rational RequisitePro 查看需求历史记录</a>
</li>
</ul>
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